REORG: include: move common/ticks.h to haproxy/ticks.h

Nothing needed to be changed, there are no exported types.
diff --git a/include/proto/proxy.h b/include/proto/proxy.h
index e1da0f5..caf1c86 100644
--- a/include/proto/proxy.h
+++ b/include/proto/proxy.h
@@ -23,7 +23,7 @@
 #define _PROTO_PROXY_H
 
 #include <haproxy/api.h>
-#include <common/ticks.h>
+#include <haproxy/ticks.h>
 #include <haproxy/time.h>
 #include <types/applet.h>
 #include <types/global.h>